Notre Dame running back Jafar Armstrong will miss at least five weeks and possibly up to two months after suffering an injury in the groin area against Louisville, according to a report Wednesday from the Athletic.

Armstrong, a redshirt sophomore, is one of two Notre Dame running backs who was expected to get significant touches this season, along with redshirt junior Tony Jones Jr., who will see his carries increase. Armstrong ran twice for 10 yards against Louisville before exiting with the injury late in the first quarter. He also caught one pass for 16 yards, which might have been the play on which he was hurt.